Flask-clamp.



PATENTED MAY 19, 1908.

R. E. MUNN. vFLASK CLAMP.

APPLICATION FILED 00'1.'9,1907.

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RAY EDWARD MUNN, OF TOLEDO, OHIO.

FLASK-GLAMP.

To all whom it may concern:

Be it known that I, RAY EDWARD MUNN, a citizen of the United States,residing at Toledo, in the county of Lucas and State of Ohio, haveinvented a new and useful Improvement in Flask-Clamps, of which thefollowing is a specification.

My invention relates to clamps for use by dentists in holdin the flasksin which rubber or gutta percfia bases for artificial dentures arevulcanized; and its object is to provide new and rapid, and efficientmeans of adapting the clamps to either one or more flasks. I attain thisobject by the mechanism illustrated in the accompanying drawings, inwhich- Figure (1,) is a perspective view of the flask clamp with all itsparts and containing two flasks; Fig. (2,) is a key used in operatingthe flask clamp, and Fig. (3,) is a vertical side elevation of the flaskclamp containing one flask, the shelf being swung upward, a part of theshelf being broken away to show one of the ivots on which the shelfswings.

Similar etters refer to similar parts throughout the several drawings.

The clamp frame (a), is a slightly oblong metal frame and open at thelower end. The upper or horizontal portion is, at its center, perforateddownwardly with a circular hole in which works, by means of screwthreads, a screw press, (b).. The upper end of this screw press isprovided with a square hole or slot (0) for the reception of the key orwrench ((1), shown in Fig. (2), by which the press is screwed down so asto clamp the flask or flasks and by which force is obtained to removethe excess vulcanite and retain the several parts of the flask inposition during the process of vulcanizing.

Projecting inwardly from each side of the clamp frame are two lugs (ee),which act as pivots for the swing shelf or base (f). Each of the twoarms of this swing shelf or base are pierced with a circular hole (9) ofproper size to admit the lugs or pivots (c, 6,) on the Specification ofLetters Patent.

Application filed October 9, 1907.

Patented May 19, 1908.

Serial No. 396,591.

| clamp frame and on which the swing shelf or base is held in positionin said clamp frame and onwhich the shelf or base is made to revolve.The lugs or pivots are placed directly opposite each other in the frame,and in such a position that, when the shelf is swung down, it furnishesa floor at the bottom of the clamp, giving the clamp a capacity for twoflasks, (h, h,) or by being reversed on the pivots, or swung up, theshelf furnishes a floor at about the middle of the sides of the clampframe and reduces the capacity of the clamp to one flask.

I claim:

1. In a flask clamp for vulcanizing, a frame, a shelf for the flaskspivoted in said frame, and means for clamping the flasks against saidshelf, said shelf and clamping means being so situated that when theshelf is turned in one direction, a plurality of flasks may becontained, and when it is turned in the opposite direction a differentnumber of flasks may be contained.

2. In a flask clamp for vulcanizing, a rectangular frame, a shelf witharms pivoted within the sides of said frame, so that the base of theshelf is parallel with ends of said frame, said pivots being so situatedin said frame that when the shelf is swung toward one end, one flask maybe clamped, by means of pressure against the shelf and when the shelf isswung in the other direction, a different numberof flasks may becontained.

3. In a flask clamp for vulcanizing, a U shaped frame, a U shaped shelffor the flasks pivoted within said frame and for clamping the flasksagainst said shelf, the same being so pivoted in said frame, that byturning the shelf in different directions, different numbers of flasksmay be contained in said flask clamp.

RAY EDWVARD MUNN.

